HLTB21H3 Study Guide - Final Guide: Mycobacterium Leprae, Leprosy, Cathar Yellow Cross

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coraljellyfish401

8 Dec 2011

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Document Summary

Leprosy - basic information & etiology: caused by bacteria: mycobacterium leprae, occurs naturally only in humans, leprosy bacillus. Leprosy can affect all people: no one is ultimately susceptible, common in ages 10-14 and 25-44, rarely seen in infants, considered a disease of low virulence, bacilli are shed from the skin. History: may have originated in fear east asia, first documented in: India approximately 600 bc -> mentioned in: egypt 1550 bc -> papyrus document various writings, greece 320 bc -> mentioned in records, after the army of alexander the great returned from. Treatment: chaulmoogra nut, promin (1941, dapsone (1950s) controls growth of bacilli. Bcg (mycobacterium bovis) vaccine for tb: who recommends multidrug therapy (mdt, dapsone, rifampin and clofazamine. = less susceptibility to leprosy -> though no cross protection between tuberculosis and leprosy developed in india and works similarly to bcg immune tolerance and provoking a response that kills and clears m. leprae from the body =

Related Questions

Leprosy is caused by infection with Mycobacterium Leprae. In one form of the disease, tuberculoid leprosy, few live bacteria are found and although the skin and peripheral nerves are damaged by inflammatory responses, the disease progresses slowly and the patient survives. In the other form, lepromatous leprosy, copious antibodies are produced but gross tissue destruction occurs and the disease is eventually fatal. Which form of CD4 cell response (Th1 or Th2) do you think is induced in each form of the disease and how does it contribute to the outcome?

Staphylococcus Aureus

1. Main biological features

a. Cell shape, arrangement, Gram stain, endospores, capsule, unusual features.

2. Clinical Manifestations

a. List the diseases that are produced by this microorganism.

3. Mechanism of Disease

a. List of how the microorganism induces disease: Toxin, proteolysis, pyogenic, immunological mechanism or multiple mechanisms.

4. Transmission

a. How the microorganism is transmitted and who is at risk of acquiring the infection.

5. Prevention

a. List the most common prevention methods

b. Is there a vaccine?

6. Treatment

a. Is antimicrobial intervention necessary?

b. Have resistant strains been detected?

c. List the common methods of treatment (you donât need to list drug names).

d. Prognosis â Mortality associated with the disease

Streptococcus Pyogenes Bhemolysis